package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
@EnableDiscoveryClient
@SpringBootApplication
//开启Hystrix
@EnableHystrix
//断路器仪表盘
@EnableHystrixDashboard
public class ServiceRibbonApplication {

	public static void main(String[] args) {
		SpringApplication.run(ServiceRibbonApplication.class, args);
	}
	@Bean
    @LoadBalanced
    RestTemplate restTemplate() {
        return new RestTemplate();
    }
	@Bean
	public ServletRegistrationBean getServlet(){
		  HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
		  ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
		  registrationBean. setLoadOnStartup(1);
		  registrationBean.addUrlMappings ("/hystrix.stream");
		  registrationBean.setName ("HystrixMetricsStreamServlet");
		  return registrationBean;
	}
}
